Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortization Expense for Intangible Assets

Amortization expense for intangible assets consisted of the following:

	Three Months Ended
	March 31,
(In millions)	2019		2018
Amortization expense	$	0.0	$	0.5